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A low-nox burner for resource utilization of extremely low calorific value associated gas and carbon black burnout

An associated gas and burner technology, which is applied in the direction of combustion type, combustion method, incinerator, etc., can solve the problems of particulate matter emission, environmental pollution, threat to human health, etc., to reduce the generation of fuel-related NOx, improve gas utilization efficiency, and improve The effect of stabilizing ignition and economy

Active Publication Date: 2021-05-04
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

According to research, the rapid burn-out temperature of carbon black particles needs to reach above 1900°C, so the use of existing incinerators will cause a large amount of particulate matter emissions, pollute the environment and threaten human health

Method used

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  • A low-nox burner for resource utilization of extremely low calorific value associated gas and carbon black burnout
  • A low-nox burner for resource utilization of extremely low calorific value associated gas and carbon black burnout

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] see figure 1 figure 2 , The technical solution adopted in the present invention is: a new type of low-calorific-value associated gas and carbon black burnout (activated carbon carbonization furnace pyrolysis gas and activation furnace associated gas) low NOx burner. Low calorific value gas inlet 1, ignition chamber 2, primary air inlet 3, combustion-supporting device 4, swirl channel regenerative burner 5, swirl burn-off air 6, burn-out chamber or furnace 7, recessed heat-accumulating burner 8. The extremely low calorific value gas produced in the activated carbon manufacturing process enters from the low calorific value gas inlet 1, and the primary air entering the primary air inlet 3 and the pyrolysis gas generated by the raw coal in the combustion supporting device 4 enter the cyclone after being ignited in the ignition chamber 2. The heat storag...

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Abstract

The invention discloses a low-NOx burner for resource utilization of extremely low calorific value associated gas and carbon black burnout, which includes a flue gas inlet for entering the extremely low calorific value gas generated during the production process of activated carbon, and the flue gas inlet is output The end is connected to the pilot combustion chamber, and the primary air inlet is set on the pilot combustion chamber, and the low calorific value gas combusted in the pilot combustion chamber passes through the swirl channel regenerative burner and the exhaust air sent in by the exhaust air inlet. Complete combustion in the concave heat-gathering combustion chamber and furnace. The invention realizes the integrated treatment of industrial extremely low calorific value associated gas combustion, carbon black elimination and low NOx combustion. The heat of extremely low calorific value gas is effectively used, which greatly improves the efficiency of energy utilization. It can provide heat for subsequent enterprise transformation such as flue gas whitening or heating transformation, and eliminate environmental pollution such as carbon black.

Description

technical field [0001] The invention relates to chemical manufacturing enterprises such as activated carbon and the technical field of energy conservation and environmental protection, and in particular to a burnout low NOx burner with extremely low calorific value associated gas and carbon black. Background technique [0002] The preparation of activated carbon from raw coal generally requires two steps of treatment. One is carbonization treatment to reduce the non-carbon components in the coal, that is, the raw coal is isolated from the air for high-temperature pyrolysis, and the other is activation treatment to make the carbonized coal gasify with water vapor to produce Well-developed void structure. A large amount of carbonized pyrolysis gas and activated associated gas will be produced during the carbonization and activation process. The calorific value of these gases is extremely low, about 4% of the calorific value of methane. The main component of combustible gas is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/06F23G5/46
CPCF23G5/46F23G7/066F23G2206/10F23G2209/14
Inventor 牛艳青雷雨李帅飞吕媛惠世恩
Owner XI AN JIAOTONG UNIV
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